Ph.D., Physics, University of Texas at Dallas, Richardson, Texas, August 1998
M.S., Physics, University of Texas at Dallas, Richardson, Texas, May 1994
B.S., Physics, Dickinson College, Carlisle, Pennsylvania, May 1992
LONE STAR COLLEGE – KINGWOOD
June 2016 – Present
Adjunct Physics Professor
Currently teaching a calculus-based classical mechanics and heat course with related laboratory.
Previously taught calculus-based and non-calculus-based electromagnetism & light courses with related laboratory experiments to undergraduate students.
Demonstrated a natural ability to communicate and present complex ideas and theories to an audience effectively.
UNIVERSITY OF HOUSTON
October 2015 – Present
Satellite Altimetry Data Analyst
Programmed in GMT and Python (on a UNIX platform) to process and analyze large bathymetry and gravity time series data sets (derived from satellite altimetry data from the Cryosat 1 and Jason climatology missions).
Mapped South Atlantic tectonic ocean-bottom features, such as fracture zones, abyssal hills, etc., with unprecedented precision.
Combined the gravity, tectonic feature and magnetic field data into a series of high-resolution tectonic-magnetic gravity maps (generated in 0.5 million year increments) and presented a scientific report on these results to my research group.
Created a visual simulation of the evolution of seamounts in the S. Atlantic to support research efforts by staff scientists.
June 2014 – September 2015
Geophysics Data Analyst
Performed spectral (data) analyses and filtered false-event reflections from Polarcus (ExxonMobil) seismic marine data using DUG Insight to better resolve signals from oil and gas prospects.
Modeled and removed diffraction effects and other noise from data using Flatirons and Insight to increase signal to noise ratios.
Wrote many Bash scripts (on a LINUX platform) to reformat, resample, rebin and unit-convert big (1 to 10 TB) structured and unstructured marine and land seismic data sets.
Prepared client presentations with analysis reports and insights on various projects for the N. American Geosciences Manager.
Designated as the primary person in the Houston office in charge of performing quality control checks on client data.
UNIVERSITY OF HOUSTON
September 2013 – May 2014
Processed and interpreted various geophysical data sets to detect anomalies and trends, and presented the results and recommendations to the principal researcher.
July 2003 – July 2012
Senior Data Analyst
Analyzed market data and consumer trends to help plan company marketing campaigns and resource use.
Presented data analyses and visualizations to company partners during acquisition-strategy meetings.
Supervised software developers during the process of designing and building the company website.
Managed up to 5 employees on various three-month to one-year data acquisition projects.
JOHNS HOPKINS UNIVERSITY APPLIED PHYSICS LABORATORY
June 2000 – June 2003
Senior Staff Member (Senior Software Engineer)
Improved important software tools using C and PV-WAVE that provide access to near real-time UV images and environmental data from the Special Sensor Ultraviolet Spectrographic Imagers onboard the Defense Meteorological Satellite Program satellites and are used to evaluate potential environmental hazards to satellites and astronauts during spaceflights.
Further developed the graphical user interface for the Global Ultraviolet (hyperspectral) Imager onboard the TIMED mission, which is used to study the energetics and dynamics of the earth’s upper atmosphere between 60 to 180 kms.
Tested all code thoroughly to ensure accuracy and conformance with rigid APL and industry software engineering standards.
LOCKHEED MARTIN SPACE OPERATIONS
January 1999 – May 2000
Senior Software Engineer
Engineered safeguards (false event filters) using C and C++ that prevented the submission of dangerous attitude commands to the Hubble Space Telescope guidance, navigation & control subsystem.
Created software routines (in C and PV-WAVE) used by NASA to analyze Hubble Space Telescope telemetry data.
Performed rigorous quality control tests, including fault detection analyses, on various software products.
Participated in the software engineering process from coding to testing and V&V to deployment.
THE UNIVERSITY OF TEXAS AT DALLAS
January 1993 – August 1998
Research Assistant/Teaching Assistant
Devised a statistically-based, signal-processing algorithm in FORTRAN 90 to measure tiny, atmospheric electrical responses to space weather.
Computed ionospheric potential differences by analyzing electric field telemetry data from the Dynamics Explorer 2 satellite.
Planned and managed a team project that increased an atmospheric electricity database by 50% to support research efforts.
This research provided further evidence for a possible link between changes in solar activity and atmospheric vorticity, and culminated in a publication [See Engfer and Tinsley (1999) below].
Performed remote sensing experiment for NOAA to measure turbulence near DFW airport to safeguard commercial airplanes.
Directed laboratory experiments and taught undergraduate physics and astronomy courses.
Consistently awarded high ratings over 90% by students for teaching ability.
Software Engineering: C, C++, IDL, PV-WAVE, FORTRAN 90
Data Processing/Data Analysis
Superb Presentation & Communication Skills
QA/Quality Control Testing/Fault Detections
Scripting: Python, Bash, GMT
Time Series/Statistical Analysis
Award: Outstanding Achievement Award from NASA in May 2000 for my contribution to the success of Hubble Space Telescope Servicing Mission 3A (gyro repair mission).
Clearance: Obtained Secret Security Clearance in 2002.
Certification: ESRI ArcGIS Desktop I: Getting Started with GIS course in January 2012.
Certification: Dale Carnegie “Leadership Training for Managers” in December 2004.
Certification: “Mini-MBA” course taught by The Wharton School of the University of Pennsylvania in January 1999.
NATIONAL SOLAR OBSERVATORY June 1993 – August 1993
Image Processor Sunspot, New Mexico
Analyzed solar flare optical emissions using IDL to determine their energy source.
Calculated power spectra for two visible-light solar flares by doing image processing on flare patrol data.
This research support effort provided important results for a publication [See Reiger et al. (1996) below].
NASA GODDARD SPACE FLIGHT CENTER June – August 1991 & 1992
Numerical Modeler Greenbelt, Maryland
Developed and tested a theoretical computer model that accurately simulates X-ray emission mechanisms in the sun’s atmosphere using Monte Carlo numerical methods.
Memberships: American Geophysical Union. Geophysical Society of Houston. Society of Exploration Geophysicists.
Languages: Spanish: Reading & Writing: Intermediate. Speaking: Novice. Russian: Reading & Writing & Speaking: Novice.
Engfer, D. W. and B. A. Tinsley, An Investigation of Short-Term Solar Wind Modulation of Atmospheric Electricity at Mauna Loa Observatory, Journal of Atmospheric and Solar-Terrestrial Physics, 61, 943-953, 1999.
Engfer, D. W., Short-Term Solar Wind Modulation of the Global Electric Circuit, Thesis, 1998.
Reiger, E., D. F. Neidig, D. W. Engfer and D. Strelow, The Role of High-Energy Protons and Electrons in Powering the Solar White Light Flare Emission, Solar Physics, 167, 307-320, 1996.
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